According to Live Science, researchers are exploring an unexpected therapeutic use for the BCG vaccine—a tuberculosis preventative that's been around since the 1920s. Recent trial data suggest that multiple doses of the vaccine can significantly reduce insulin requirements in patients with two forms of diabetes. While the mechanism isn't fully understood, the finding opens a new avenue for diabetes management. However, researchers caution that extensive additional testing is needed before BCG can be recommended as a diabetes treatment. The discovery exemplifies how repurposing existing vaccines might yield benefits beyond their original purpose.

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